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  <title>Decodes a modified UTF-7 encoded string</title>
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    <li>Decodes a modified UTF-7 encoded string</li>
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  <div id="layout-content"><div id="function.imap-utf7-decode" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">imap_utf7_decode</h1>
  <p class="verinfo">(PHP 4, PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">imap_utf7_decode</span> &mdash; <span class="dc-title">Decodes a modified UTF-7 encoded string</span></p>

 </div>
 <div class="refsect1 description" id="refsect1-function.imap-utf7-decode-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>imap_utf7_decode</strong></span>(<span class="methodparam"><span class="type">string</span> <code class="parameter">$string</code></span>): <span class="type"><span class="type">string</span>|<span class="type"><span class="type false">false</span></span></span></div>

  <p class="para rdfs-comment">
   Decodes modified UTF-7 <code class="parameter">string</code> into ISO-8859-1 string.
  </p>
  <p class="para">
   This function is needed to decode mailbox names that contain certain
   characters which are not in range of printable ASCII characters.
  </p>
 </div>

 <div class="refsect1 parameters" id="refsect1-function.imap-utf7-decode-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
    
     <dt>
<code class="parameter">string</code></dt>

     <dd>

      <p class="para">
       A modified UTF-7 encoding string, as defined in <a href="http://www.faqs.org/rfcs/rfc2060" class="link external">&raquo;&nbsp;RFC 2060</a>, section 5.1.3.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>

 <div class="refsect1 returnvalues" id="refsect1-function.imap-utf7-decode-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns a string that is encoded in ISO-8859-1 and consists of the same
   sequence of characters in <code class="parameter">string</code>, or <strong><code>false</code></strong>
   if <code class="parameter">string</code> contains invalid modified UTF-7 sequence
   or <code class="parameter">string</code> contains a character that is not part of
   ISO-8859-1 character set.
  </p>
 </div>

 <div class="refsect1 seealso" id="refsect1-function.imap-utf7-decode-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.imap-utf7-encode.html" class="function" rel="rdfs-seeAlso">imap_utf7_encode()</a> - Converts ISO-8859-1 string to modified UTF-7 text</span></li>
   </ul>
  </p>
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